Comodo Help
Find the desired product help
Comodo Antispam Gateway

Comodo Antispam Gateway

Admin Guide ver 2.12

English

Print Help Download Help
Domain Management > Manage A Domain > Outgoing
  • Introduction To Comodo Antispam Gateway
    • Release Notes
    • Purchase License
    • License Information
  • Get Started
    • Incoming Filtering Configuration
      • Configure Your Mail Server
      • Configure MX Records
        • Update MX Records In Windows 2003/2008 Server
        • Update MX Records On A Host Using BIND
        • Update MX Records For Comodo DNS
        • Update MX Records For GoDaddy
        • Update MX Records For Enom
        • Update MX Records For Network Solutions
        • Update MX Records For Yahoo! Small Business
        • Update MX Records For 1and1
        • Update MX Records For 4D Web Hosting
        • Update MX Records For DNS Park
        • Update MX Records For DreamHost
        • Update MX Records For DynDNS
        • Update MX Records For IX Web Hosting
        • Update MX Records For No-IP
        • Update MX Records In CPanel
    • Outgoing Filter Configuration
      • Per-User Authentication
      • Outgoing Smarthost Setup
        • Configure QMail To Use A Smarthost
        • Configure PostFix To Use A Smarthost
        • Configure Sendmail To Use A Smarthost
        • Configure Exchange 2000/2003 To Use A Smarthost
        • Configure Exchange 2007/2010 To Use A Smarthost
        • Configure Exchange 2013/2016 To Use A Smarthost
        • Configure Office 365 To Use A Smarthost
        • Configure Exim To Use A Smarthost
          • Configure Exim / CPanel To Use A Smarthost
          • Configure Exim / Directadmin To Use A Smarthost
      • DNS Configuration
  • Login To The Admin Console
  • The Dashboard Area
  • The Admin Console
  • Domain Management
    • Add A Domain
    • Delete Domains
    • Edit Domains
    • Validate Domains
    • Manage A Domain
      • Domain Dashboard
      • Incoming
        • Quarantine
        • Manage Archived Mails
        • Incoming Spam Detection Settings
        • Report Spam
        • Delivery Queue
        • Destination Routes
        • Local Recipients
        • Clear Incoming Cache
        • Log Search
        • Domain Aliases
        • Domain Settings
        • Manage Report Subscriptions For Selected Domain
        • Relay Restrictions
        • Geolocation Restrictions
        • SPF Control Settings
      • Outgoing
        • Clear Outgoing Cache
        • Log Search
        • Users
        • Office 365 Activation
      • Email Management
        • Email Size Restriction
        • Blocked Extensions
        • Released Requests
        • Blacklisted Requests
        • Whitelisted Requests
      • Domain Audit Log
        • Audit Log Configuration
        • View Domain Log
      • Domain Rules
        • Rules
        • TLD And GTLD Rules
        • Recipient Whitelist
        • Sender Whitelist
        • Recipient Blacklist
        • Sender Blacklist
        • Whitelist Senders Per User
        • Blacklist Senders Per User
      • Account Management
        • User Account Management
        • Manage User Auto-import
        • View User History
        • Import Users From LDAP
          • LDAP Import Configuration
          • LDAP Import Confirmation List
          • LDAP Import Ignore List
  • Audit Log
  • Administrator Account Management
    • Administrators
    • User Groups & Permissions
    • Admin Groups & Permissions
    • My Comodo Account
    • My Profile
    • Users History
  • Customer Management
    • End User License And Subscriber Agreements
    • View License Information
    • Manage Report Subscriptions
    • Notification Email Settings
  • CASG Reports - An Overview
    • Quarantine Report
    • Domain Statistics Report
    • Auto-Imported Users Report
    • Quarantine Release Report
    • Reported Spam Report
  • Appendix 1 - CASG Error Codes
  • Appendix 2 - CASG Comparison Table
  • Appendix 3 -Troubleshooting LDAP
  • Appendix 4 - Useful Links
  • About Comodo Security Solutions

Outgoing


To send outgoing email, you need to add a valid user to the filter cluster. This can be done in the web interface.


The following ports are available for the outgoing service:

  • SMTP AUTH: Port 25 or 587
  • SMTP StartTLS Port 587
  • SMTP SSL Port 465

Comodo recommends port 587. The outgoing service listens by default on all IPv4 addresses activated on the server.

  • Create a separate outgoing user on the filtering cluster for each end-user to relay outgoing email. Use automatic user locking to close the account if abuse is detected.
  • There are two methods you can for per-user authentication:
  • The first is to instruct all end-users to authenticate directly to the filter cluster for their outgoing emails.
  • The second is to configure your SMTP server to authenticate each user separately to the filter cluster for all outgoing mail.
When using per-user authentication for outgoing mail, ensure you set usage limits correctly and enable automatic locking.
  • If you find per-user authentication too cumbersome, you can use smarthost setup as an alternative.
  • You add a single outgoing account to the filtering server and point all outgoing emails to this server, thus using the filter cluster as smarthost.
  • Most email servers have a 'smart host setting' feature which lets you easily accomplish the task of configuring outgoing email filtering.
  • Make sure to disable automatic locking setting to prevent the full server account getting locked because a single user sent out spam. Also enable block spam so that individual spam messages will be stopped and the administrator notified. 
While using smart hosting setup for outgoing mail filtering, ensure to set the limits correctly per user based on the server.

The 'Outgoing' area lets you:

  • Set up spam checks on outgoing mail.
  • Clear the outgoing mail server cache.
  • Search for outgoing email messages.
  • Integrate Office 365 with CASG.


Click the following links for more details:

  • Clear outgoing cache
  • Log search
  • Users
  • Office 365 Activation
Our Products
  • Free Antivirus
  • Free Internet Security
  • Website Malware Removal
  • Free Anti-Malware
  • Anti-Spam (Free Trial)
  • Windows Antivirus
  • Antivirus for Windows 7
  • Antivirus for Windows 8
  • Antivirus for Windows 10
  • Antivirus for MAC
  • Antivirus for Linux
  • Free Endpoint Security
  • Free ModSecurity
  • Free RMM
  • Free Website Malware Scanner
  • Free Device Manager for Android
  • Free Demo
  • Network Security
  • Endpoint Protection
  • Antivirus for Android
  • Comodo Antivirus
  • Wordpress Security
Cheap CDN
  • Bootstrap CDN
  • Semantic UI CDN
  • Jquery CDN
  • CDN Plans
  • CDN
  • Free CDN
Enterprise
  • Patch Management Software
  • Patch Manager
  • Service Desk
  • Website Down
  • Endpoint Protection Solutions
  • Website Security Check
  • Remote Monitoring and Management
  • Website Security
  • Device Manager
  • ITSM
  • CRM
  • MSP
  • Android Device Manager
  • MDR Services
  • Managed IT Support Services
  • Free EDR
Free SSL Certificate
Support Partners Terms and Conditions Privacy Policy

© Comodo Group, Inc. 2025. All rights reserved.